<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>

  <script src="https://cdn.bootcdn.net/ajax/libs/vue/2.7.14/vue.min.js"></script>
  <div class="app">
    <div>=====input{{val}} =========textarea{{tex}}======select{{sel}}===={{gender}}===={{che}} </div>
    <hr>
    <input type="text" v-model="val">
    <textarea v-model="tex"></textarea>
    <select v-model="sel">
      <option value="web">web</option>
      <option value="js">js</option>
      <option value="ui">ui</option>
    </select>
    <hr>
   男： <input type="radio" value="男" v-model="gender">
  女： <input type="radio" value="女" v-model="gender">
  <input type="checkbox" v-model="che">
  </div>
  <script>
    const app = new Vue({
      el: '.app',
      data: {
        style1: 'width: 300px; hight:300px;',
        val:'1',
        tex:'2',
        sel:'3',
        gender:'男',
        che:true
      }
    })
  </script>
</body>

</html>